I totally agree with guilty on this one, and its something i noticed too.
I remember seeing old gun cam footage of planes strafing ships and the amount of water and mist blasted up by the rounds impact was EPICLY cool.
The splash effects when I shot into Dover harbour on my first play were kinda lame, to be honest. There was only like one spash for what should have been like 25 rounds.
It should look like
That is all.